Carbothermic reduction process
Method of carbothermically producing aluminum-silicon alloys
Process and an apparatus for producing silicon carbide consisting mainly of beta-type crystal
Aluminum purification system
Process for the preparation of silicon or ferrosilicon
Energy efficient production of aluminum by carbothermic reduction of alumina
Carbothermic reduction furnace Patent #: 4334917
ApplicationNo. 06/472680 filed on 03/07/1983
US Classes:75/10.21, Producing or treating Aluminum(Al) or Aluminum alloy75/10.27Carbothermic reduction of Aluminum(Al) compound
ExaminersPrimary: Rosenberg, Peter D.
Attorney, Agent or Firm
International ClassesC22B 21/02 (20060101)
C22B 21/00 (20060101)
AbstractDisclosed are apparatus and method of carbothermic direct reduction for producing an aluminum alloy from a raw material mix including aluminum oxide, silicon oxide, and carbon wherein parallel heat sources are provided by a combustion heat source and by an electrical heat source at essentially the same position in the reactor, e.g., such as at the same horizontal level in the path of a gravity-fed moving bed in a vertical reactor. The present invention includes providing at least 79% of the heat energy required in the process by the electrical heat source.